diff --git a/app-shells/sash/sash-3.8.ebuild b/app-shells/sash/sash-3.8.ebuild
index c927bf54bedbd..c9e88e0c3df7e 100644
--- a/app-shells/sash/sash-3.8.ebuild
+++ b/app-shells/sash/sash-3.8.ebuild
@@ -23,7 +23,7 @@ src_prepare() {
 	eapply "${FILESDIR}"/sash-3.7-builtin.patch
 
 	sed \
-		-e "s:-O3:${CFLAGS}:" \
+		-e "s|-O3|${CFLAGS}|" \
 		-e '/strip/d' \
 		-i Makefile || die
 	sed \